Does melting point increase across a period? Melting and boiling points increase across the three metals because of the increasing strength of their metallic bonds. The number of electrons which each atom can contribute to the delocalized “sea of electrons” increases. The atoms also get smaller and have more protons as you go from sodium […]
How many minutes does it take to drive 16 miles?
What is magnet and types?
What is magnet and types? Permanent magnets are magnets that retain their magnetism once magnetized. Temporary magnets are materials magnets that perform like permanent magnets when in the presence of a magnetic field, but lose magnetism when not in a magnetic field. Below we breakdown the various types of magnet available. What are the main […]
How do you determine incidence?
How do you determine incidence? Therefore, the term ‘person-year’ was used, which was defined as the number of quarters of the year that a patient was registered in a general practice. Incidence rates were calculated as the sum of all new episodes of illness of a certain disease in 2012 divided by the size of […]
Can you solve physics problems?
Can you solve physics problems? Multiply and divide the quantities until the units match the units of the answer quantity. For example, if you’re trying to find Potential Energy (kg*m2/s2) and you have the height (m), mass (kg) and gravitational acceleration (m/s2), you can match the units by multiplying the three quantities (m*kg*m/s2=kg*m2/s2). How do […]
Does oxygen have a fixed shape?
Does oxygen have a fixed shape? The state that a given substance exhibits is also a physical property. Some substances exist as gases at room temperature (oxygen and carbon dioxide), while others, like water and mercury metal, exist as liquids. (a) Solid O2 has a fixed volume and shape, and the molecules are packed tightly […]
What are 6 Non-renewable resources?
What are 6 Non-renewable resources? Nonrenewable energy resources include coal, natural gas, oil, and nuclear energy. What is the best reason to use renewable resources? Environmental and economic benefits of using renewable energy include: Generating energy that produces no greenhouse gas emissions from fossil fuels and reduces some types of air pollution. Diversifying energy supply […]
How often do blue moons occur?
Which direction is relative to magnetic field?
Which direction is relative to magnetic field? The direction of the force due to a magnetic field is perpendicular to the direction of motion. distance away from the wire, and is called the permeability of free space. Magnetic fields are measured in Teslas(T). Why are iron atoms affected by magnetic fields? Iron atoms are ferromagnetic […]